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$3,000 is invested in an account paying 4% interest and twice that amount is invested at 6%. Which of the following expressions represents the amount of interest earned on the money invested at 6%?

1 Answer

6 votes
(3,000(2))(0.06)(t) because the principal is double at 6% rate, the rate in decimal is 0.06, and time is not given. 
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